regeneration

nounre·gen·er·a·tion \ri-ˌjen-ə-ˈrā-shən, ˌrē-\

Medical Definition of REGENERATION

1

: an act or the process of regenerating : the state of being regenerated

2

: the renewal, regrowth, or restoration of a body or a bodily part, tissue, or substance after injury or as a normal bodily process <continual regeneration of epithelial cells><regeneration of the uterine lining>—compare regulation 2a